Fastening machine



Mai-ch 23, 1937.- c. B. THAYER FASTENING MACHINE Filed April 22, 1935 2 Sheets-Sheet 2 VQ,WW C/zesier. 77Layer w, 7% w s Patented Mar. 23, 1937 PATENT OFFICE FASTENING MACHINE Chester B. Thayer, Benton Harbor, Mich; Pearl 0. Thayer administratrix of said Chester B.

Thayer, deceased Application April 22, 1935, Serial No. 17,659

10 Claims.

This instant invention relates to fastening machines and more particularly to devices for stapling basket bottoms to the side walls.

The primary objects of the present invention are to provide a machine of the character above indicated which is particularly adapted for use in stapling pre-formed basket bottoms to the side walls of tub type baskets; to provide such a device which is simple in construction; to provide such a device which is effective and convenient in use; and, to provide such a device which is economical in manufacture.

An illustrative embodiment of the invention is shown in the accompanying drawings, wherein:

Figure 1 is a bottom plan view of a tub type basket whose pre-formed bottom has had one of its pre-started staples pierced through its peripheral hoop and into clinching engagement with the bottom hoop of the basket by the device of the instant invention and in the manner illustrated in Figure 6;

Figure 2 is a side elevational view thereof, the basket being tipped upside down;

Figure 3 is a sectional view of the pre-formed basket bottom on line 33 of Figure 1, the stapling machine being omitted from the view;

Figure 4 is an enlarged fragmentary top plan view of the stapling device, here shown as placed in position relative tothe basket and its bottom prior to the stapling operation;

Figure 5 is a fragmentary side elevational sectional view thereof, on line 55 of Figure 4; and

Figure 6 is an enlarged sectional view on line 6---& of Figure 5, but showing the position of the parts at the end of the stapling operation.

Referring to the drawings in which like parts of the device, basket and its pie-formed bottom therein shown are designated by the same numerals in the several views, a tub type basket havi0 ing a side Wall formed by a plurality of staves I0 secured together in circular form by a bottom hoop ll, middle hoop l2 and top hop I3 as by staples M, is provided with a pre-formed bottom formed by the cross members I 5 secured together if; by a hoop I6. The hoop It is preferably, tho-ugh not necessarily, provided with a plurality of prestarted spaced fasteners such as the staple fasteners i! which are consecutively caused to pierce the hoop l6, staves Ii) and into clinching engage- 51) ment with the bottom hoop i I by the stapling machine of the instant invention and in the manner best shown in Figure 6 and as hereinafter presently described.

The stapling device comprises the member I8,

here shown as a triangularly formed bifurcated plate, whose slot i9 is provided with a transverse pin 20 slidable therein. The closed end of this bifurcated plate is provided with a transversely disposed angle iron member 2! which is secured to thereto by a bolt forming a plunger 22 disposed in parallelism with and :below the slot I9 as by the nut 23 and the collar 24.

The free end of the plunger, adapted to act as a hammer, is here shown as having a sleeve 25 in sliding embrace thereon, the outer end of the sleeve being provided with a slotted end26 for engaging the head of a staple fastener 11. Means for limiting the sliding movement of the sleeve relative to the plunger comprises the set screw 21 passing through the wall of the sleeve and into the elongated longitudinally milled slot 28 in the plunger as best shown .in Figure 6 and a coiled expansion spring 29 encircling the plunger and. interposed between the collar 24 and the inner end of the sleeve normally urges the sleeve outwardly as best shown in Figure 5.

A pair of arms vill], normally disposed at an angle to each other on opposite sides of the pin 20 and as best shown in Figure 4, are pivotally connected with the pin. The inner ends of these arms are each provided with a depending portion forming an anvil 3| for the purpose hereinafter explained and each arm is provided with an 01T- set portion or ear 32.

A pair of links 33, each pivotally connected at one end to the angle iron member 2| as by bolts 34 and on opposite sides of the plate l8 are likewise each pivotally connected to an ear 32 as by bolts 35.

In operation, the device is placed on the bottom surface of the pre-formed basket bottom with its arms 30 in spread apart relation and with the anvils 3| along the outer marginal edgeof the bottom hoop H and with the slotted end 26 of the sleeve 25 in radial aligning engagement with a staple fastener [1, all as best shown in Figures 5 and 6. The arms 30 are then manually folded toward each other as indicated by the arrows in Figure 4 to closed position shown in Figure 1.

As the arms 30 are thus folded toward closed position, the links 33 cause the plunger 22 to move outwardly and relatively to its sleeve 25 and when the shank of the set screw 21 engages the outer end of the milled slot 28, the sleeve 25 is likewise caused to move outwardly and the plunger drives the staple through the hoop I6,

a stave l0 and the outer hoop I I and clinches the staple against the anvils 3| as best shown in Figure 6, in which action the sleeve may be forced back-wardly against the pressure of spring 29. The sleeve exerts some driving action on the staple in the outward movement of the plunger such action being however yielding in character by reason of said spring. The arms 30 may then be spread outwardly from their position shown in Figure 1 and as indicated by the arrows for the next stapling operation.

The sleeve 25, may if desired, be provided with a deeper slot 26 than is shown in the drawings in which a staple may be manually placed in instances where the staples I! are not pre-started in the hoop Hi.

It will thus be seen that the machine of the instant invention is particularly well adapted for use in stapling a pre-formed basket bottom to the side wall of a tub type basket and that the device is simple in construction, effective and efficient in use, and is economical in manufacture.

While but one specific embodiment on the invention has been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted without departing from the spirit of this invention as defined by the following claims.

I claim:

1. In a device of the class described, a member having a slot therein, a hammer plunger member disposed in parallelism with the slotted member and in rigid association therewith, a pin within said slot and slidable therein, a pair of arms disposed on opposite sides of the pin, having anvil portions and pivotally connected with said slotted member, and a pair of links each pivotally connected at one end to said slotted member on an opposite side thereof and each pivotally connected at its other end to an anvil arm.

2. In a device of the class described, a member having a slot therein, a hammer plunger member disposed in parallelism with the slotted member and in rigid association therewith, a hammer sleeve slidably embracing the plunger, a pin within said slot and slidable therein, a pair of anvil arms disposed on opposite sides of the pin and pivotally connected therewith, and a pair of links each pivotally connected at one end to said slotted member on an opposite side thereof and each pivotally connected at its other end to an anvil arm.

3. In a device of the class described, a member having a slot therein, a hammer plunger member disposed in parallelism with the slotted member and in rigid association therewith, a hammer sleeve limitedly slidably embracing the plunger, a pin within said slot and slidable therein, a pair of anvil arms disposed on opposite sides of the pin and pivotally connected therewith, and a pair of links each pivotally connected at one end to said slotted member on an opposite side thereof and each pivotally connected at its other end to an anvil arm.

4. In a device ofthe class described, a member having a slot therein, a hammer plunger member disposed in parallelism with the slotted member and in rigid association therewith, a hammer sleeve limitedly slidably embracing the plunger,

an expansion spring interposed between the plunger and sleeve, a pin within said slot and slidable therein, a pair of anvil arms disposed on opposite sides of the pin and pivotally connected therewith, and a pair of links each pivotally connected at one end to said slotted member on an opposite side thereof and each pivotally connected at its other end to an anvil arm.

5. In a device of the class described, a member having a slot therein, a hammer plunger member disposed in parallelism with the slotted member and in rigid association therewith, a sleeve slidably embracing the plunger and provided with a hammer end for engaging the end of a fastener, a pin within said slot and slidable therein, a pair of anvil arms disposed on opposite sides of the pin and pivotally connected therewith, and a pair of links each pivotally connected at one end to said slotted member on an opposite side thereof and each pivotally connected at its other end to an anvil arm.

6. In a device of the class described, a member having a slot therein, a hammer plunger mem ber disposed in parallelism with the slotted member and in rigid association therewith, a sleeve slidably embracing the plunger and provided with a slotted end for engaging the head of a staple fastener, a pin within said slot and slidable therein, a pair of anvil arms disposed on opposite sides of the pin and pivotally connected therein, and a pair of links each pivotally connected at one end to said slotted member on an opposite side thereof and each pivotally connected at its other end to an anvil arm.

7. In a device of the class described, a member having a slot therein, a hammer plunger member disposed in parallelism with the slotted member and in rigid association therewith, a sleeve limitedly slidably embracing the plunger and provided with a hammer end for engaging the end of a fastener, a pin within said slot and slidable therein, a pair of anvil arms disposed on opposite sides of the pin and pivotally connected therewith, and a pair of links each pivotally connected at one end to said slotted member on an opposite side thereof and each pivotally connected at its other end to an anvil arm.

8. In a device of the class described, a member having a slot therein, a hammer plunger member disposed in parallelism with the slotted member and in rigid association therewith, a sleeve limitedly slidably embracing the plunger and provided with a slotted end for engaging the head of a staple fastener, a pin within said slot and slidable therein, a pair of anvil arms disposed on opposite sides of the pin and pivotally connected therein, and a pair of links each pivotally connected at one end to said slotted member on an opposite side thereof and each pivotally connected at its other end to an anvil arm.

9. In a device of the class described, a member having a slot therein, a hammer plunger member disposed in parallelismv with the slotted member and in rigid association therewith, a sleeve limitedly slidably embracing the plunger provided with a hammer end for engaging the end of a fastener, an expansion spring interposed between the plunger and sleeve, a pin within said slot and slidable therein, a pair of anvil arms disposed on opposite sides of the pin and pivotally connected therewith, and a pair of links each pivotally connected at one end to said slotted member on an opposite side thereof and each pivotally connected at its other end to an anvil arm.

10. In a device of the class described, a member having a slot therein, a hammer plunger member disposed in parallelism with the slotted member and in rigid association therewith, a sleeve limitedly slidably embracing the plunger and provided with a slotted end for engaging the head of a staple fastener, an expansion spring interposed between the plunger and sleeve, a pin within said slot and slidable therein, a pair of anvil arms disposed on opposite sides of the pin and pivotally connected therewith, and a pair of links each pivotally connected at one end to said slotted member on an opposite side thereof and each pivotally connected at its other end to an anvil arm.

CHESTER B. 'I'HAYER. 

